Emergency Numbers or Helpline for Highways and Expressways.Background: When driving on a highway or expressway with a Touch n Go Card or SmartTAG, you won't have the breakdown assistance phone number that is handily printed on a toll ticket; because you don't have a ticket! Bookmark or save this page in case you have a breakdown or need help from authorised crews. Turn on hazard lights and stay safe behind crash barriers when waiting for help.